Cooling apparatus for motor vehicles



[May 20, 1930. I J. A. GRANSTEDT I 1,759,305

COOLING APPARATUS FOR MOTOR VEHICLES I Filed June 27. 1928 Patented May 20, 1930 UNITED STATES JOHAN ANS I-IELM GR-ANs'rEDnorfSJALEVAD, SWEDEN.

COOLING APPARATUS 110a morongvnn-Icnns Application filed June 27, 1928, Serial No; 288,7,53;.'and' in Sweden July 12, 192?.

In the cooling system of motor vehicles there is always, especially in hot weather or at heavy loads, a steady loss of water due to the fact that steam producedby boiling or 5 evaporation of the water accumulates at the top of the radiator and escapes.

The invention has for its object to reduce said loss of water, at the same time overcoming other difliculties inherent to the production of steam within the radiator, as, for instance, such a high heating of the cooling water inlet that it cannot be touched by the hand in refilling the radiator.

The invention is characterized, chiefly,by

the provision above the water level in the upper water space of the radiator of'a water re-cooling device having a forwardly directed, preferably rearwardly tapering air inlet pipe which forms an outer extension of a cooling tube of the recooling device.

In the accompanying drawing one embodiment of the invention is illustrated by way of example. Fig. l'is a vertical section of a re-cooling device according to one embodiment. Fig. 2 is a side elevation of the same device, and'Fig. 3 is a rear view thereof.

WVith reference to Figs. 13 of the drawing, the numeral 1 indicates the water inlet pipe of'the radiator of. an automobile. The radiator itself is not shown as this is not necessary for the understanding of the invention. The pipe 1 which may be ballshaped, as shown, or may be of any other vi a shape is closed at its top by a threaded cover '2, Fig. 2 and is open at its bottom, forming an. externally threaded nipple 10 to be i I screwed into the radiator.

Inserted in thehollow ball 1 is a tube 3 extending horizontally therethrough between two opposite openings formcdin the wall of the ball, said tubebeing open at both ends so as to present a free passage to the at- 4, preferably tapering towardsthe tube .3.

Said pipe 4 may be screwed into an internally threadedsl'ejevef5 supportedibya pairof'arms 6 pivoted at 7 to opposite sides of the hollow ball 1. In the running of the vehicle the; pipe 4 catches the air causing it to pass through the tube 3 at a successively accelerated speed thereby effecting an efficient cooling thereof. I 1

Any steam that may be accumulated within; the ball 1 is caused to condense upon the outer surface of the tube 3 and is thus returned to the water in the upper water space of the radiator. At the same time the ball 1 and its cover 2 aremaintained sufficiently cold to permit grasping them by the hand, as for unscrewing the cover when the radiator is to be refilled. In refilling the radiator the pipe 4 may be used as funnel. To this end it is suflicient to unscrew the pipe 4 to such an extent as to bring its inner end outside of the outer surface of the ball 1 whereupon the arms 6 with the sleeve 5 and the pipe 4 may be swung upwardly to the position shown by the dotted lines in Fig. 1.

What I claim is: p

1. In a water cooling system for motor vehicles the combination with a radiator,-of a water inlet pipe, a through-extending tube open at both ends inserted in said inlet pipe,; and a funnel shaped air inlet pipe extending forwardly from said tube.

2. In a water coolingapparatus for motor vehicles the combination with a radiator, of a water inlet pipe, a rearwardly tapering; through-extendingtube open at both ends, inserted in said pipe to be passed by the atmospheric air in the running of the vehicle, and a funnel shaped air inlet pipe extending forwardly from the wider end of said tube.

3. In a water cooling system for motor vehicles the combination with a radiator, of a substantially spherical water inlet pipe, a through-extending tube open at both ends inserted in said inlet pipe, a funnel shape pipe having means pivoted to said'water inlet pipe whereby the same may be set in a position to form a forwardly directed air inlet pipe in connection with said tube or an up- 100 wardly directed water filling funnel in communioation with the interior inlet pipe.

of .said' Water 4. The combination with an automobile radiator and a spherical Water inlet pipe thereof having a Water inlet opening at its top, of

an open-ended horizontal tube extendingthrough said pipe in the longitudinal direotion of the automobile, an internally threaded sleeve having arms pivoted to opposite sides of said pipe whereby the sleeve maybe set in a position 'in f ont of the forward mouth of saidtube on in a position above the Water inlet opening of the pipe, and a funnel shaped pip'e'having n eans atits narrowerend whereby it may be screwed into said sleeve.

In testimony whereof I have signed my J OHAN ANSHELM GRANSTEDT. 

